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<a href="_grid_packed_message_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef PACKEDMESSAGE_H</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define PACKEDMESSAGE_H</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &lt;boost/asio.hpp&gt;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="keyword">namespace </span>Network</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;{</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="keyword">typedef</span> std::vector&lt;boost::uint8_t&gt; data_buffer;</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keyword">const</span> <span class="keywordtype">unsigned</span> TAG_REQUEST = 0;</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="keyword">const</span> <span class="keywordtype">unsigned</span> TAG_RESPONSE = 1;</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="keyword">const</span> <span class="keywordtype">unsigned</span> HEADER_SIZE = 5;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> MessageType&gt;</div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="code" href="class_network_1_1_grid_packed_message.html">   31</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_network_1_1_grid_packed_message.html" title="Wrapper aroung a specified message type. Basic message infos (size, type). Message model must be spec...">GridPackedMessage</a></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;{</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    <span class="keyword">typedef</span> boost::shared_ptr&lt;MessageType&gt; MessagePointer;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        <span class="keywordtype">int</span> messageType_;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <a class="code" href="class_network_1_1_grid_packed_message.html" title="Wrapper aroung a specified message type. Basic message infos (size, type). Message model must be spec...">GridPackedMessage</a>(MessagePointer msg = MessagePointer())</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        : m_msg(msg)</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    {</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;        }</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="class_network_1_1_grid_packed_message.html#af7ef862b08b983b25461b629b7aa2bda">   47</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_network_1_1_grid_packed_message.html#af7ef862b08b983b25461b629b7aa2bda" title="Set the message type (request 0, response 1)">set_type</a> (<span class="keywordtype">int</span> type)</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        {</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;                messageType_ =type;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        }</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno"><a class="code" href="class_network_1_1_grid_packed_message.html#aca8a411ca78a280db3009140cfa57cf4">   56</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_network_1_1_grid_packed_message.html#aca8a411ca78a280db3009140cfa57cf4" title="Reference a message.">set_msg</a>(MessagePointer msg)</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    {</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        m_msg = msg;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    }</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="class_network_1_1_grid_packed_message.html#ab5fa6d56662106a115ca9e5d89d80c5f">   65</a></span>&#160;    MessagePointer <a class="code" href="class_network_1_1_grid_packed_message.html#ab5fa6d56662106a115ca9e5d89d80c5f" title="Get a shared ptr on the message.">get_msg</a>()</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    {</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        <span class="keywordflow">return</span> m_msg;</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    }</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="code" href="class_network_1_1_grid_packed_message.html#a4d9386923be3ee589ddd87964327f8f2">   74</a></span>&#160;    <span class="keywordtype">bool</span> <a class="code" href="class_network_1_1_grid_packed_message.html#a4d9386923be3ee589ddd87964327f8f2" title="Wrap the message.">pack</a>(data_buffer&amp; buf)<span class="keyword"> const</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="keyword">    </span>{</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        <span class="keywordflow">if</span> (!m_msg)</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        <span class="keywordtype">unsigned</span> msg_size = m_msg-&gt;ByteSize();</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        buf.resize(HEADER_SIZE + msg_size);</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        encode_header(buf, msg_size);</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;                <span class="keywordflow">return</span> m_msg-&gt;SerializeToArray(&amp;buf[HEADER_SIZE], msg_size);</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    }</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="code" href="class_network_1_1_grid_packed_message.html#a406d9ddb6aebbd50fdd831c57b632c13">   89</a></span>&#160;    <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <a class="code" href="class_network_1_1_grid_packed_message.html#a406d9ddb6aebbd50fdd831c57b632c13" title="Retrieve the size of the message.">decode_header</a>(<span class="keyword">const</span> data_buffer&amp; buf)</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    {</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keywordflow">if</span> (buf.size() &lt; HEADER_SIZE)</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;            <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        <span class="keywordtype">unsigned</span> msg_size = 0;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;        <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i &lt; HEADER_SIZE-1; ++i)</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;            msg_size = msg_size * 256 + (static_cast&lt;unsigned&gt;(buf[i]) &amp; 0xFF);</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        <span class="keywordflow">return</span> msg_size;</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    }</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>
<div class="line"><a name="l00103"></a><span class="lineno"><a class="code" href="class_network_1_1_grid_packed_message.html#a29e131e224496efe692626f5c1b638eb">  103</a></span>&#160;    <span class="keywordtype">bool</span> <a class="code" href="class_network_1_1_grid_packed_message.html#a29e131e224496efe692626f5c1b638eb" title="Unwrap the message.">unpack</a>(<span class="keyword">const</span> data_buffer&amp; buf)</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    {</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;       <span class="keywordflow">return</span> m_msg-&gt;ParseFromArray(&amp;buf[HEADER_SIZE], buf.size() - HEADER_SIZE);</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    }</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <span class="keywordtype">void</span> encode_header(data_buffer&amp; buf, <span class="keywordtype">unsigned</span> size)<span class="keyword"> const</span></div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="keyword">    </span>{</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        assert(buf.size() &gt;= HEADER_SIZE);</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        buf[0] = <span class="keyword">static_cast&lt;</span>boost::uint8_t<span class="keyword">&gt;</span>((size &gt;&gt; 24) &amp; 0xFF);</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        buf[1] = <span class="keyword">static_cast&lt;</span>boost::uint8_t<span class="keyword">&gt;</span>((size &gt;&gt; 16) &amp; 0xFF);</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        buf[2] = <span class="keyword">static_cast&lt;</span>boost::uint8_t<span class="keyword">&gt;</span>((size &gt;&gt; 8) &amp; 0xFF);</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        buf[3] = <span class="keyword">static_cast&lt;</span>boost::uint8_t<span class="keyword">&gt;</span>(size &amp; 0xFF);</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;                buf[4] = messageType_;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    }</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    MessagePointer m_msg;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;};</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;}</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="preprocessor">#endif </span></div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="preprocessor"></span></div>
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